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1Weathering Vocab
Weathering and Erosion unit vocabulary
Term | Definition |
---|---|
Weathering | The chemical and physical processes that break down rock at the Earth's surface. |
Chemical Weathering | The process that breaks down rock through chemical changes. |
Mechanical Weathering | The type of weathering in which rock is physically broken into smaller pieces. |
Erosion | The process that moves rocks. |
Load | Amount of sediment carried by a stream. |
Deposition | Process by which sediments are laid down in new locations. |
Alluvial Fan | Deposit formed where a stream leaves a mountain range. |
Delta | Sediments deposited at the mouth of a large river that flows into a lake or ocean. |
Runoff | Moving water that moves over the Earth's surface. |
Tributary | A stream that flows into a larger stream. |
Glacier | A large mass of ice that moves slowly over land. |
Valley Glacier | A long narrow glacier that forms when snow and ice build up high in a mountain valley. |
Continental Glacier | A glacier that covers much of a continent. |
Abrasion | Wearing away of rock. |
Permeable | Weathering due to water seeping into air spaces in rock. |
Ice Wedging | Rocks broken by frozen water. |
Plucking | The process by which glaciers pick up rocks. |